A Low Power Driver Amplifier for Unlicensed 2.4 GHz Band

被引：2

作者：

Le, Viet-Hoang ^{[1
]}

Han, Seok-Kyun ^{[1
]}

Lee, Sang-Gug ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, U Radio Lab, Dept Elect Engn, Taejon 305701, South Korea

来源：

IEICE TRANSACTIONS ON ELECTRONICS | 2011年 / E94C卷 / 01期

关键词：

current reuse; driver amplifier; high drain efficiency; high PAE; low power transmitter; CMOS; RF;

D O I：

10.1587/transele.E94.C.120

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents the design of a driver amplifier (DA) for a cordless mouse application, operating at the 2.4 GHz ISM unlicensed band. The DA is a single-ended topology, and is composed of two stages: the first stage is a cascode amplifier to provide high gain and good input-output isolation, while the output stage is a simple common source amplifier that adopts a novel current reuse scheme to reduce the DC bias current by half. The DA implemented in a 0.18 mu m CMOS process has a 16 dB gain at 2.4 GHz, and it can drive a 3 dBm to the antenna with an output stage drain efficiency of 31% and a power-added efficiency (PAE) of 20% while drawing 4.5 mA from a 1.8 V supply.

引用

页码：120 / 123

页数：4

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